Widely Tunable Grating Cavity Lasers

A widely tunable multi‐channel grating cavity laser is proposed and experimentally demonstrated. The device is implemented in Littman configuration with an echelle grating based on Rowland circle construction and realized by monolithically integrating all elements in an InP substrate. Lasing wavelen...

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Bibliographic Details
Published in:ETRI journal 2006, 28(5), , pp.545-554
Main Authors: Kwon, Oh‐Kee, Sim, Eundeok, Kim, Kang‐Ho, Kim, Jong‐Hoi, Yun, Ho‐Gyeong, Kwon, O Kyun, Oh, Kwang Ryong
Format: Article
Language:English
Subjects:
beam deflection
grating cavity lasers
monolithic integration
multi‐channel lasers
Tunable lasers
전자/정보통신공학
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Summary:A widely tunable multi‐channel grating cavity laser is proposed and experimentally demonstrated. The device is implemented in Littman configuration with an echelle grating based on Rowland circle construction and realized by monolithically integrating all elements in an InP substrate. Lasing wavelength is selected by turning on an amplifier and the appropriate channel element in the array, and it is tuned by controlling light deflection electrically. The 6‐channel device exhibits a tuning range of about 50 nm with a side mode suppression ratio of more than 30 dB. This is accomplished by adjusting the applied current of the dispersive element and phase control section.
ISSN:1225-6463
2233-7326
DOI:10.4218/etrij.06.0106.0030